Another one where the trailer flips and takes the bike and rider too. He should have had a swivel hitch.
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Towing with a motorcycle just never appealed to me. Seems to take a certain freedom away. In any case if you look closely at the picture it seems as though the locking lever for the ball hasn't been set. You can also see that the mechanism that holds it to the ball wasn't set. My conclusion he never locked the hitch, ball popped off and the safety chains did the rest.:Shrug: